在线英语听力室

美国科学60秒 SSS 2012-10-23

时间：2013-06-19 08:45:19

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（单词翻译）

 Want to exercise, but don't have enough time? Forget slogging half an hour on the treadmill1. You can burn the same number of calories with a few quick sprints3 on an exercise bike. So says a study presented at a meeting of the American Physiological4 Society. 

 
Researchers studied 10 active young men. For three days, the men ate an energy-balanced diet--meaning calories in matched calories out. Then, still on the diet, each guy spent two days living in a sealed chamber5, so researchers could monitor oxygen and CO2 levels—a way of exactly calculating calories burned.
 
Just hanging out watching TV, the guys burned 2,200 calories a day. But they burned 200 more on days when they did five 30-second sprints on an exercise bike. Now, these were not laid-back efforts. The guys pedaled as hard as they could, and had to take four-minute rest breaks in between.
 
Previous studies show that sprint2 training like this improves the body's response to blood sugar, possibly helping6 to stave off diabetes7. And the researchers say it may be an alternative to endurance exercise for burning calories. That is, if you don't mind really feeling the burn.

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1 treadmill 1pOyz     
n.踏车；单调的工作
参考例句：
  • The treadmill has a heart rate monitor.跑步机上有个脉搏监视器。
  • Drugs remove man from the treadmill of routine.药物可以使人摆脱日常单调的工作带来的疲劳。
2 sprint QvWwR     
n.短距离赛跑；vi. 奋力而跑，冲刺；vt.全速跑过
参考例句：
  • He put on a sprint to catch the bus.他全速奔跑以赶上公共汽车。
  • The runner seemed to be rallied for a final sprint.这名赛跑者似乎在振作精神作最后的冲刺。
3 sprints 617aabe05f387ce10003edf8f6a91925     
n.短距离的全速奔跑( sprint的名词复数 )v.短距离疾跑( sprint的第三人称单数 )
参考例句：
  • You can run sprints only so long before you're out of breath. 你死命地跑，只能跑那么一段时间，到了喘不上气的时候，只好停下来。 来自辞典例句
  • The cheetah finds the open grasslands ideal footing for its lightning-quick sprints. 非洲猎豹把开阔的草原作为它们闪电猎食的理想处所。 来自互联网
4 physiological aAvyK     
adj.生理学的，生理学上的
参考例句：
  • He bought a physiological book.他买了一本生理学方面的书。
  • Every individual has a physiological requirement for each nutrient.每个人对每种营养成分都有一种生理上的需要。
5 chamber wnky9     
n.房间，寝室；会议厅；议院；会所
参考例句：
  • For many,the dentist's surgery remains a torture chamber.对许多人来说，牙医的治疗室一直是间受刑室。
  • The chamber was ablaze with light.会议厅里灯火辉煌。
6 helping 2rGzDc     
n.食物的一份&adj.帮助人的，辅助的
参考例句：
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
7 diabetes uPnzu     
n.糖尿病
参考例句：
  • In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者，医生告诫他们不要吃糖。
  • Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。

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